Thailand · Grade 3 · Practice Sheet 13

1. 1.

   You have ฿1 and ฿9. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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2. 2.

   Continue the pattern by counting in 10s: 0, 10, ___

   Formula:Skip Counting

   $\text{next} = \text{term} + \text{step}$

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3. 3.

   There are 2 bags with 8 apples in each bag. How many apples are there in total?

   Formula:Multiplication as Repeated Addition

   $\text{total} = \text{groups} \times \text{size}$

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4. 4.

   20 sweets are shared equally among 5 children. How many does each child get?

   Formula:Division (Equal Sharing)

   $\text{each} = \text{total} \div \text{groups}$

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5. 5.

   Subtract 16 from 40.

   Formula:Subtraction

   $\text{difference} = a - b$

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6. 6.

   You have ฿2 and ฿7. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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7. 7.

   What is half of 34?

   Formula:Halving

   $h = n \div 2$

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8. 8.

   Continue the pattern by counting in 10s: 40, 50, ___

   Formula:Skip Counting

   $\text{next} = \text{term} + \text{step}$

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9. 9.

   15 sweets are shared equally among 3 children. How many does each child get?

   Formula:Division (Equal Sharing)

   $\text{each} = \text{total} \div \text{groups}$

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10. 10.

    Add 10 + 11 + 3.

    Formula:Addition of Three Numbers

    $\text{sum} = a + b + c$

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11. 11.

    Add 10 and 50.

    Formula:Addition

    $\text{sum} = a + b$

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12. 12.

    Subtract 20 from 34.

    Formula:Subtraction

    $\text{difference} = a - b$

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13. 13.

    Fill in the missing number: 13 + ___ = 18.

    Formula:Missing Addend

    $b = \text{total} - a$

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14. 14.

    Continue the pattern by counting in 10s: 40, 50, ___

    Formula:Skip Counting

    $\text{next} = \text{term} + \text{step}$

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15. 15.

    There are 5 bags with 6 apples in each bag. How many apples are there in total?

    Formula:Multiplication as Repeated Addition

    $\text{total} = \text{groups} \times \text{size}$

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16. 16.

    What is 7 × 10?

    Formula:Multiplication (Times Tables)

    $\text{product} = a \times b$

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17. 17.

    Add 27 and 11.

    Formula:Addition

    $\text{sum} = a + b$

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18. 18.

    Fill in the missing number: 6 + ___ = 12.

    Formula:Missing Addend

    $b = \text{total} - a$

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19. 19.

    What is half of 18?

    Formula:Halving

    $h = n \div 2$

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20. 20.

    Subtract 29 from 36.

    Formula:Subtraction

    $\text{difference} = a - b$

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